Chad Spent a Couple Years in Prison for His Previous

Chad spent a couple years in prison for his previous charges. Once he was released he was still determined to harm his ex-girlfriend. Chad stalks his ex-girlfriend Megan and ends up killing her and burying her dead body in the Nevada desert.

A) Because Scott did not prevent this crime from occurring and even though he knew about it, he failed to take the necessary steps to stop/prevent this crime, it could fall into what type of liability?
B) Strict
C) Due process
D) Associative
E) Indeterminate